Dreamcast Coderīs Cable Scheme. Where?

Hello. I wanted very much to rip some games that I have to do some tests and stuff, but Itīs very hard to me to buy that serial cable to link the DC serial port to the PC serial port, so, then, I wanted to solder the wires directly from the DC motherboard to a serial male plug.

I just needed the scheme of where to solder wich wire, and, if possible, names of the software Iīll have to use in the Dreamcast and in my PC.